Alphatron
α粒子电离压强计, α射线管
🗣️ 情景例句
I'll go to him.
我去。
How have you been?
你过的还好吗？
A game that is very popular with these young swimmers is the underwater tricycle race.
这些幼小的游泳运动员非常喜爱的一种游戏是水下三轮车比赛。